Iris 1.2 Release Notes

The following updates to Iris functionality have been made since the 1.1 release.

Version 2.0 summary list

o Added Redshifting/Blueshifting capabilities

o Added Interpolation and calculation of integrated quantities

o Upgraded visualization for Co-plotting

o Bugfixes and enhancements

Science Capabilities

Added "manual" single value in PhotometryCatalog importer. Now users can
manually input a value for the spectral coordinates instead of a column.

Added the new "Shift, Interpolate, Integrate" component to the Iris Desktop.

Redshift: SEDs can be shifted from a given z to a given z.

Interpolation: SEDs can now be interpolated using different algorithms. The
default algorithm (Linear Spline) should provide optimal results in most cases.

Flux integration: SEDs can now be integrated using any combination of spectral
intervals and photometry Filters.

When used from the Integration panel, the Photometry Filter Browser allows
multiple selections.

SED Builder

Updated list of Photometry Filters: we have now more than 2100 filters from
the Spanish VO filter service.

Transmission curves of Photometry Filters are downloaded and cached on the
local disk for being used for integration.

Added new Name Resolver that uses a combination of harvard and NED mirrors.

Changed broadcast icons.

Better management of SEDs in SED Manager.

Singe Table Output. Tables can now be saved and broadcasted as a single table
with the spectral, flux, and error columns. Units are converted according to
the user's input.

Removed extensions constraints on saved filenames.

Conditional Warning when SED has many segment and the
"single table" option is not selected

sherpa-samp: Moved logfile to ~/.vao/iris/

sherpa-samp: sherpa now ignores points with errors set to zero.

When a SED is removed, the last SED in the workspace is selected

SED visualization

This release adds co-plotting functionality to the Visualizer. Select
the 'Display' menu item on the Visualizer menu bar, and select 'Co-plot'.
A window with a list of the currently loaded SEDs is displayed. Select
multiple entries in the list; use the Shift-click and Ctrl-click (or
Command- click on the Mac) to perform multiple selections. Then click
on the 'Co-plot' button to generate the plot.

The Metadata and Data browsers have now an additional column with the
name of the target. This is to ease the selection, with the Boolean
filter, of data points from a single target when doing co-plots.
Although, since the target name is usually also part of each data point
identification string (column 'a:ID'), the same selection can be achieved
by adding an element such as
'NGC 1068' in a:
to the Python expression.

Selections performed by the Boolean filter on one table (metadata or data)
now are automatically propagated to the other table.

Sherpa SAMP

Included Sherpa v 4.5 (Released Dec 2012 in CIAO 4.5)

Included new Python modules setuptools 0.6c11, astLib 0.6.1
and some modules from SciPy 0.11, to enable new science functions.

A bugfix to the Seaton Model found recently was added to the version
of Sherpa included in Iris.

sherpa-samp: Moved logfile to ~/.vao/iris/

sherpa-samp: sherpa now ignores points with errors set to zero. For least-squares and maximum likelihood statistics such points are still
included, since error bars are not used in those statistic
calculations.

SEDLib

sedlib will now generate and write the 'value' field for the
offending Param elements. ( These were *Axis.Name params)

sedlib will no longer write "em.*" in UCD fields when writing out
default ucds. It will instead reflect the SpectralAxis ucd.
It will NOT correct ucds already present on elements.

ASDC Plugin

An updated version of the ASDC plugin is now installed by default in Iris

Bug Fixes

BR-99: compliance issues + sedlib will now generate and write the
'value' field for the offending Param elements. ( These
were *Axis.Name params) + sedlib will no longer write "em.*"
in UCD fields when writing out default ucds. It will instead
reflect the SpectralAxis ucd. It will NOT correct ucds
already present on elements.

VAOPD-667 - Start Sherpa from the Iris launcher (not from the Visualizer component)

VAOPD-612 Adding a "Duplicate Photometric Point" button in the IRIS builder
Photometric Catalog Importer (Hoever, after an iteration with
Raffaele we decided not to create a new button, but that when a new
point is created it inherits the properties of the last point created.
This should be more user friendly